package com.thor.palmmall.util.http;

import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;

import sun.misc.BASE64Decoder;
import sun.misc.BASE64Encoder;

public class FileUtil {
  
  /** 
   * 将文件转成base64 字符串 
   * @param path文件路径 
   * @return  *  
   * @throws Exception 
   */  
   
  public static String encodeBase64File(String path) throws Exception {  
   File file = new File(path);;  
   FileInputStream inputFile = new FileInputStream(file);  
   byte[] buffer = new byte[(int) file.length()];  
   inputFile.read(buffer);  
   inputFile.close();  
   return new BASE64Encoder().encode(buffer);  
   
  }  
   
  /** 
   * 将base64字符解码保存文件 
   * @param base64Code 
   * @param targetPath 
   * @throws Exception 
   */  
   
  public static void decoderBase64File(String base64Code, String targetPath)  
    throws Exception {  
   byte[] buffer = new BASE64Decoder().decodeBuffer(base64Code);  
   FileOutputStream out = new FileOutputStream(targetPath);  
   out.write(buffer);  
   out.close();  
   
  }  
   
  /** 
   * 将base64字符保存文本文件 
   * @param base64Code 
   * @param targetPath 
   * @throws Exception 
   */  
   
  public static void toFile(String base64Code, String targetPath)  
    throws Exception {  
   
   byte[] buffer = base64Code.getBytes();  
   FileOutputStream out = new FileOutputStream(targetPath);  
   out.write(buffer);  
   out.close();  
  }  
}
